Thanks for responses to my question everyone.  Yes, I think I'll try a Sony first, i.e. the Sony 410LP.  It's supposed to be very light and portable, and it was the first headphone about which I read a review,  in which someone complained that it had too much tremble rather than bass!  I don't like a bass heavy sound myself.

Also, I've read that people claim that headphones sound differently after a "burn in" period, during which they can get either better or worse sounding.  I've never read about this effect, but it would explain why I have 2 identical headphones, which sound quite different.  I've been using one of them for a long time, and that might be the reason. - Mark  

javagene@hotmail.com wrote

> I am no expert, but I also use inexpensive Sony headphones. They make so many different ones.
> 2 that come to mind are MDR V150 [aprrox. $20], or MDR  XD200[approx. $30]. Check out the stats and reviews at Amazon. I love mine.